Heavily Upgraded Ender 3 V2 3D Printer

Ready-to-print, high-performance modified Ender 3 V2. This machine has been extensively upgraded from the ground up for maximum precision, reliability, direct-drive capability, and modern firmware control. Perfect for printing standard filaments as well as flexible and engineering-grade materials. Core Hardware & Extrusion Upgrades ​Extruder: BIQU H2 Direct Drive Extruder (H2 V2S setup) providing crisp, reliable retraction and multi-material capability. ​Auto Bed Leveling: BIGTREETECH MicroProbe V2 Auto Leveling Sensor for precise first layers and automated mesh bed leveling. ​Filament Monitoring: BIGTREETECH Smart Filament Sensor V2.0 (BTT SFS V2.0) featuring 4-way detection for nozzle clogging, filament runout, tangles, and extruder trouble. Electronics & Control Board ​Motherboard: BIGTREETECH SKR MINI E3 V3.0 32-bit Motherboard featuring quiet TMC2209 UART stepper drivers. ​Interface / Klipper Setup: BIGTREETECH CB1 PI4B Adapter Board paired with a 5-inch IPS Touch Screen (BTT HDMI5), running an advanced Klipper-based control environment. Mechanical & Precision Upgrades ​Z-Axis Anti-Backlash: T8 Anti-Backlash Spring-Loaded Brass Nuts to eliminate vertical lead screw play and improve layer consistency. ​Z-Axis Decoupling: Kee Pang 18mm Oldham Couplings (Brass T8 Z-Axis Screw Couplers) to isolate lead screw wobble from the z-axis movement.